STRINGSTRING
STRING protein interaction network
Nodes:
Network nodes represent proteins
splice isoforms or post-translational modifications are collapsed, i.e. each node represents all the proteins produced by a single, protein-coding gene locus.
Node Color
colored nodes:
query proteins and first shell of interactors
white nodes:
second shell of interactors
Node Content
empty nodes:
proteins of unknown 3D structure
filled nodes:
a 3D structure is known or predicted
Edges:
Edges represent protein-protein associations
associations are meant to be specific and meaningful, i.e. proteins jointly contribute to a shared function; this does not necessarily mean they are physically binding to each other.
Known Interactions
from curated databases
experimentally determined
Predicted Interactions
gene neighborhood
gene fusions
gene co-occurrence
Others
textmining
co-expression
protein homology
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[Homology]
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glnDMetal dependent phosphohydrolase; Modifies, by uridylylation and deuridylylation, the PII regulatory proteins (GlnB and homologs), in response to the nitrogen status of the cell that GlnD senses through the glutamine level. Under low glutamine levels, catalyzes the conversion of the PII proteins and UTP to PII-UMP and PPi, while under higher glutamine levels, GlnD hydrolyzes PII-UMP to PII and UMP (deuridylylation). Thus, controls uridylylation state and activity of the PII proteins, and plays an important role in the regulation of nitrogen assimilation and metabolism. (899 aa)    
Predicted Functional Partners:
ABQ93132.1
PFAM: nitrogen regulatory protein P-II; Belongs to the P(II) protein family.
 
 
 
 0.814
glnE
(Glutamate--ammonia-ligase) adenylyltransferase; Involved in the regulation of glutamine synthetase GlnA, a key enzyme in the process to assimilate ammonia. When cellular nitrogen levels are high, the C-terminal adenylyl transferase (AT) inactivates GlnA by covalent transfer of an adenylyl group from ATP to specific tyrosine residue of GlnA, thus reducing its activity. Conversely, when nitrogen levels are low, the N-terminal adenylyl removase (AR) activates GlnA by removing the adenylyl group by phosphorolysis, increasing its activity. The regulatory region of GlnE binds the signal tra [...]
 
   
 0.745
ABQ93510.1
PFAM: aminotransferase, class I and II.
       0.713
ABQ93358.1
PFAM: glutamine amidotransferase, class-II; glutamate synthase, alpha subunit domain protein; ferredoxin-dependent glutamate synthase; glutamate synthase.
     
 0.647
ABQ94744.1
Signal transduction histidine kinase, nitrogen specific, NtrB; PFAM: ATP-binding region, ATPase domain protein domain protein; histidine kinase A domain protein domain protein.
  
 
 
 0.537
map
Methionine aminopeptidase, type I; Removes the N-terminal methionine from nascent proteins. The N-terminal methionine is often cleaved when the second residue in the primary sequence is small and uncharged (Met-Ala-, Cys, Gly, Pro, Ser, Thr, or Val). Requires deformylation of the N(alpha)-formylated initiator methionine before it can be hydrolyzed; Belongs to the peptidase M24A family. Methionine aminopeptidase type 1 subfamily.
  
    0.529
tatB
Twin-arginine translocation protein, TatB subunit; Part of the twin-arginine translocation (Tat) system that transports large folded proteins containing a characteristic twin- arginine motif in their signal peptide across membranes. Together with TatC, TatB is part of a receptor directly interacting with Tat signal peptides. TatB may form an oligomeric binding site that transiently accommodates folded Tat precursor proteins before their translocation.
  
     0.503
ABQ94585.1
TIGRFAM: glutamine synthetase, type I; PFAM: glutamine synthetase, catalytic region; glutamine synthetase, beta-Grasp.
 
   
 0.463
guaB
Inosine-5'-monophosphate dehydrogenase; Catalyzes the conversion of inosine 5'-phosphate (IMP) to xanthosine 5'-phosphate (XMP), the first committed and rate-limiting step in the de novo synthesis of guanine nucleotides, and therefore plays an important role in the regulation of cell growth. Belongs to the IMPDH/GMPR family.
 
   
 0.450
ABQ93509.1
PFAM: CBS domain containing protein; protein of unknown function DUF294, nucleotidyltransferase putative.
  
  
 0.425
Your Current Organism:
Psychrobacter sp. PRwf1
NCBI taxonomy Id: 349106
Other names: P. sp. PRwf-1, Psychrobacter sp. PRwf-1
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